code: def test_huffman_coding(self):
      HuffmanCoding.encode_file(
          self.file_in_name, self.file_out_bin_name
      )
      HuffmanCoding.decode_file(
          self.file_out_bin_name, self.file_out_name
      )
  
      with open(self.file_in_name, "rb") as file_1, open(
          self.file_out_name, "rb"
      ) as file_2:
          content_1 = file_1.read()
          content_2 = file_2.read()
  
          self.assertEqual(content_1, content_2)
  
file_path: keon-algos/tests/test_compression.py
imports: from algorithms.compression.huffman_coding import HuffmanCoding
  from algorithms.compression.rle_compression import decode_rle, encode_rle
  from algorithms.compression.elias import elias_gamma, elias_delta
  import unittest
label_desc: Use image node_id 3 for calling the TestHuffmanCoding obj's underlying member method code with example usage: obj.test_huffman_coding() without return types